FEATURES l Small Footprint l SIP Package l 3KVDC Isolation l Temperature Range: -40°C to +85°C l No Heat sink Required l Internal SMD Construction l No External Component Required l Industry Standard Pinout l RoHS Compliance IF_S-2W Series 2W, FIXED INPUT, ISOLATED & REGULATED SINGLE OUTPUT DC-DC CONVERTER APPLICATIONS Patent Protection RoHS The IF_S-2W Series are specially designed for applications where a group of polar power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is fixed (voltage variation ≤±5%); 2) Where isolation is necessary between input and output (isolation voltage ≤3000VDC); 3) Where the regulation of the output voltage and the output ripple noise are demanded. MODEL SELECTION Rated Power Package Style Output Voltage Input Voltage Product Series PRODUCT PROGRAM Input Voltage (VDC) Model Nominal Range IF0505S-2W 5 4.75-5.25 IF1205S-2W 12 IF2405S-2W 24 Output Voltage (VDC) Output Current (mA) Input Current (mA)(Typ.) @Max. @No Load Load Max. Min. 5 400 40 579 11.4-12.6 5 400 40 22.8-25.2 5 400 40 Efficiency(%) @Max. Load Min. Typ. 25 65 69 238 20 66 70 119 8 66 70 Unit OUTPUT SPECIFICATIONS Item Test condition Min. Typ. Max. Line regulation For Vin change of ±5% -- -- ±0.5 Load regulation 10% to 100% load -- ±1 ±2 Output voltage accuracy 100% load -- -- ±3 Temperature drift 100% load -- -- 0.03 Output ripple* 20MHz Bandwidth -- 20 30 Output Noise* 20MHz Bandwidth 50 150 % %/℃ mVp-p *Test ripple and noise by “parallel cable” method. See detailed operation instructions at DC-DC Application Notes. COMMON SPECIFICATION Item Test Conditions Min. Typ. Max. Unit Storage humidity range Non condensing -- -- 95 % Operating temperature -40 -- 85 Storage temperature -55 -- 125 40 60 -- 300 Lead temperature Ta=25°C -- Temp. rise at full load 1.5mm from case for 10 seconds -- Cooling ℃ Free air convection Case material Plastic(UL94-V0) Short circuit protection Continuous Switching Frequency 100% load, nominal input MTBF MIL-HDBK-217F@25℃ Weight The copyright and authority for the interpretation of the products are reserved by MORNSUN -- 100 300 KHz 3500 -- -- K hours -- 2.4 -- g IF_S-2W 2013.11.21-A/3 Page 1 of 3 ISOLATION SPECIFICATIONS Item Test condition Min. Typ. Max. Unit Isolation voltage Input-Output, tested for 1 minute and leakage current less than 1 mA 3000 -- -- VDC Isolation resistance Input-Output, test at 500VDC 1000 -- -- MΩ Isolation Capacitance Input-Output,100KHz/0.1V -- 60 -- pF TYPICAL CHARACTERISTICS Temperature Derating Graph Operating Temp.( C ) OUTLINE DIMENSIONS & pIN CONNECTIONS APPLICATION NOTE 1)Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of the full load. If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load. 2)Recommended circuit If you want to further decrease the input/output ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 1). L L +Vo Vin Cin DC DC Cout GND 0V (Figure 1) The copyright and authority for the interpretation of the products are reserved by MORNSUN IF_S-2W 2013.11.21-A/3 Page 2 of 3 It should also be noted that the inductance and the frequency of the “LC” filtering network should be staggered with the DC/DC frequency to avoid mutual interference. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). EXTERNAL CAPACITOR TABLE (TABLE 1) Vin Cin Vout Cout (VDC) (μF) (VDC) (μF) 5 4.7 5 4.7 12 2.2 --24 0.47 --It’s not recommend to connect any external capacitor in the application field with less than 0.5 watt output. 3)Overload Protection Under normal operating conditions, the output circuit of these products has no protection against over-current and short-circuits. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. 4)Input Over-voltage Protection Circuit The simplest device for input over-voltage protection is a linear voltage regulator with overheat protection that is connected to the input end in series (Figure 2). Vin +Vo REG DC DC GND 0V (Figure 2) 5)When the environment temperature is higher than 71°C, the product output power should be less then 60% of the rated power. 6)It is not recommended to increase the output power capability by connecting two or more converters in parallel. The product is not hot-swappable. Note: 1. Operation under minimum load will not damage the converter; However, they may not meet all specifications. 2. Max. Capacitive Load is tested at nominal input voltage and full load. 3. Unless otherwise noted, All specifications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load. 4. In this datasheet, all test methods are based on our corporate standards. 5. All characteristics are for listed models, and non-standard models may perform differently. Please contact our technical support for more detail. 6. Please contact our technical support for any specific requirement. 7. Specifications of this product are subject to changes without prior notice. MORNSUN Science & Technology Co.,Ltd. Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-38601850 Fax:86-20-38601272 E-mail: [email protected] Http://www.mornsun-power.com The copyright and authority for the interpretation of the products are reserved by MORNSUN IF_S-2W 2013.11.21-A/3 Page 3 of 3